Should Computers/PC Monitor, Printer, UPS… be shutdown daily before leaving office?
It is better to shut down the computer before leaving the office to save power.
It is better to turn off your computer daily while leaving office because it reduces risk of any unexpected electrical hazard that might occur from an unattended computer.
Turning computer off means it is getting a break. We all know everything has a lifetime. The more the computer runs, the less its lifetime will be.
It is a good practice. Your data is more safe when the PC is completely power off. Also re booting a machine improves performance. You should also check the workplace policy.